/* asobi site — "a live-coding stage"
 *
 * The system, so the next person can extend it:
 *
 * COLOUR   Dark only. The stage is near-black; the pictures bring the colour.
 *          Chrome uses greys (--ink, --ink-2, --ink-3, all >= 4.5:1 on --stage)
 *          and ONE accent, --signal, which means "live / here / go": the
 *          recording dot, the current page and section, the primary button,
 *          the caret. Syntax tints (--t-*) live only inside code.
 *          Pictures on a light background are "paper" cards pinned on the
 *          stage (registration marks drawn by asobi); dark ones are "screens".
 * TYPE     System stacks only. Sans for reading, mono as a design element
 *          (labels, readouts, counters, section numbers, code).
 *          Scale (px): 12 13 15 17 20 24 32 44 64, and a display size
 *          clamp(88, 15vw, 232) for the wordmark. Body 17/1.7 (ja 1.85).
 * SPACE    4-based: --s1..--s9 = 4 8 12 16 24 32 48 72 112.
 * GRID     Content 1320 max, 12 columns, gutter --s5. Long text 68ch.
 * MOTION   Only pictures move, and only on screen. UI transitions 160ms /
 *          600ms for the stage. Caret blink 1s steps. Everything decorative
 *          stops under prefers-reduced-motion (pictures show frame one).
 * DECOR    Made by asobi at build time (see Decor in site/build.rb):
 *          favicon.svg, mark.svg (registration mark), grid.svg (sketchbook
 *          grid), wave.svg (section rule). No hand-drawn ornaments.
 */
:root {
  --stage: #0b0b0f;
  --stage-2: #121218;
  --stage-3: #1b1b23;
  --rule: #272731;
  --rule-2: #3a3a46;
  --ink: #f1f1f4;
  --ink-2: #b6b6c1;
  --ink-3: #8f8f9c;
  --signal: #ff5470;
  --signal-ink: #0b0b0f;
  --paper: #f7f5ef;
  --focus: #8ec5ff;
  --t-c: #8f8f9c;
  --t-s: #a6e3a1;
  --t-y: #ffc58a;
  --t-n: #ffd479;
  --t-k: #ff8fab;
  --t-t: #cdb4ff;
  --t-w: #89d9ff;
  --sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic UI", Meiryo, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", "Hiragino Sans", monospace;
  --s1: 4px; --s2: 8px; --s3: 12px; --s4: 16px; --s5: 24px; --s6: 32px; --s7: 48px; --s8: 72px; --s9: 112px;
  --wide: 1320px;
  --measure: 68ch;
  --gutter: clamp(16px, 4vw, 48px);
  color-scheme: dark;
}

/* ---- base -------------------------------------------------------------- */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; background: var(--stage); }
body {
  margin: 0; background: var(--stage); color: var(--ink);
  font: 17px/1.7 var(--sans); font-kerning: normal;
  -webkit-font-smoothing: antialiased;
}
:lang(ja) body, body:lang(ja) { line-height: 1.85; line-break: strict; }
h1, h2, h3 { line-height: 1.2; font-weight: 700; letter-spacing: -0.015em; text-wrap: balance; margin: 0; }
:lang(ja) h1, :lang(ja) h2, :lang(ja) h3 { letter-spacing: 0.01em; word-break: auto-phrase; }
p { margin: 0 0 var(--s4); text-wrap: pretty; }
a { color: var(--ink); text-decoration-color: var(--rule-2); text-underline-offset: 4px; text-decoration-thickness: 1px; }
a:hover { text-decoration-color: var(--ink); }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; border-radius: 2px; }
::selection { background: var(--signal); color: var(--signal-ink); }
code, pre, kbd, textarea, .mono { font-family: var(--mono); }
:not(pre) > code { font-size: .86em; background: var(--stage-3); padding: .1em .38em; border-radius: 3px; }
a > code { box-shadow: inset 0 -1px 0 var(--rule-2); }
a:hover > code { box-shadow: inset 0 -1px 0 var(--ink-2); }
.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
}
.skip { position: absolute; left: -999px; top: 0; z-index: 50; background: var(--signal); color: var(--signal-ink); padding: var(--s2) var(--s4); }
.skip:focus { left: var(--s4); top: var(--s2); }
.label {
  font: 500 12px/1.4 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--ink-3);
}
.label .n { color: var(--signal); }

/* ---- header / footer ----------------------------------------------------- */
.top {
  position: relative; z-index: 20;
  display: flex; align-items: center; gap: var(--s5); flex-wrap: wrap;
  padding: var(--s3) var(--gutter); border-bottom: 1px solid var(--rule);
  background: rgba(11, 11, 15, .86); backdrop-filter: blur(10px);
  position: sticky; top: 0;
}
.brand { font: 800 21px/1 var(--sans); letter-spacing: -0.04em; text-decoration: none; display: inline-flex; align-items: center; gap: 9px; }
.brand img { width: 18px; height: 20px; display: block; }
.nav ul { display: flex; gap: var(--s5); list-style: none; margin: 0; padding: 0; flex-wrap: wrap; }
.nav a { font: 500 13px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; text-decoration: none; color: var(--ink-2); padding: 6px 0; }
:lang(ja) .nav a { font: 500 14px/1 var(--sans); letter-spacing: .04em; }
.nav a:hover { color: var(--ink); }
.nav a[aria-current="page"] { color: var(--ink); box-shadow: 0 2px 0 var(--signal); }
.lang {
  margin-left: auto; display: inline-flex; flex: none; padding: 2px;
  border: 1px solid var(--rule-2); border-radius: 999px; background: var(--stage);
  font: 600 12px/1 var(--mono); letter-spacing: .06em;
}
.lang > * { display: grid; place-items: center; min-width: 40px; min-height: 28px; border-radius: 999px; }
.lang a { color: var(--ink-2); text-decoration: none; }
.lang a:hover { background: var(--stage-3); color: var(--ink); }
.lang [aria-current] { background: var(--ink); color: var(--stage); }
main { display: block; }
.foot {
  border-top: 1px solid var(--rule); margin-top: var(--s9); padding: var(--s5) var(--gutter);
  color: var(--ink-3); font-size: 13px; display: grid; grid-template-columns: 1fr auto;
  align-items: center; gap: var(--s2) var(--s4); background: var(--stage);
}
.foot p { margin: 0; }
.foot-brand { justify-self: start; font: 800 21px/1 var(--sans); letter-spacing: -.04em; text-decoration: none; }
.foot-brand:hover { text-decoration: underline; }
.foot-note { grid-column: 1 / -1; }

/* ---- the sketchbook grid (grid.svg is drawn by asobi) -------------------- */
.sheet { background-image: url("grid.svg"); background-size: 32px 32px; background-position: center top; }

/* ---- pictures: paper and screens ------------------------------------------ */
.shot { position: relative; width: min(100%, calc(var(--pic-h, 340px) * var(--r, 1))); margin: 0; }
.pic { position: relative; width: 100%; aspect-ratio: var(--r, 1); overflow: hidden; }
.pic > svg.pic-still { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.pic > .pic-live { position: absolute; inset: 0; }
.shot.screen .pic { border-radius: 6px; box-shadow: 0 0 0 1px var(--rule-2); }
.shot.paper .pic {
  border-radius: 2px;
  box-shadow: 0 1px 0 rgba(255,255,255,.35) inset, 0 18px 40px -18px rgba(0,0,0,.9), 0 2px 6px rgba(0,0,0,.5);
}
/* registration marks at two corners of a paper sheet (mark.svg is drawn by asobi) */
.shot.paper::before, .shot.paper::after {
  content: ""; position: absolute; width: 18px; height: 18px; pointer-events: none;
  background: url("mark.svg") center / contain no-repeat; opacity: .8;
}
.shot.paper::before { left: -9px; top: -9px; }
.shot.paper::after { right: -9px; top: calc(100% - var(--ro-h, 30px) - 9px); }
.readout {
  margin: var(--s2) 0 0; height: 22px; display: flex; align-items: center; gap: 7px;
  font: 12px/1 var(--mono); letter-spacing: .04em; color: var(--ink-3); font-variant-numeric: tabular-nums;
}
.ro-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--signal); flex: none; }
.ro-dot.still { background: none; box-shadow: inset 0 0 0 1.5px var(--ink-3); }
.is-live + .readout .ro-dot { animation: rec 1.6s ease-in-out infinite; }
@keyframes rec { 50% { opacity: .25; } }

/* ---- code ------------------------------------------------------------------- */
pre.code {
  margin: 0; padding: var(--s4) var(--s5); background: var(--stage-2); border: 1px solid var(--rule);
  border-radius: 6px; overflow-x: auto; font-size: 14px; line-height: 1.65; tab-size: 2; color: var(--ink);
}
.t-c { color: var(--t-c); font-style: italic; }
.t-s { color: var(--t-s); }
.t-y { color: var(--t-y); }
.t-n { color: var(--t-n); }
.t-k { color: var(--t-k); }
.t-t { color: var(--t-t); }
.t-w { color: var(--t-w); }
.t-new { color: var(--stage); background: var(--t-w); border-radius: 2px; box-shadow: 0 0 0 2px var(--t-w); }
/* subtitles: each line on its own tight backing, as in the live view */
pre.subs { margin: 0; font-size: 14px; line-height: 1.55; white-space: pre-wrap; color: var(--ink); background: none; }
pre.subs code { display: block; }
.sub { display: inline-block; max-width: 100%; padding: 1px 8px; background: rgba(8, 8, 12, .74); text-shadow: 0 1px 2px rgba(0,0,0,.6); }
.sub.blank { background: none; }
.caret { display: inline-block; width: .55em; height: 1.1em; vertical-align: -0.18em; background: var(--signal); margin-left: 1px; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* links and buttons */
.to-play {
  display: inline-flex; align-items: center; gap: 8px; margin-top: var(--s3);
  font: 500 12px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--ink-2); text-decoration: none;
}
.to-play::before { content: ""; width: 0; height: 0; border-left: 7px solid var(--signal); border-top: 4.5px solid transparent; border-bottom: 4.5px solid transparent; }
.to-play:hover { color: var(--ink); }
.btn {
  display: inline-flex; align-items: center; gap: 10px; text-decoration: none; cursor: pointer;
  font: 600 16px/1 var(--sans); color: var(--ink); background: transparent; border: 1px solid var(--rule-2);
  border-radius: 999px; padding: 14px 24px; transition: border-color .16s, background .16s;
}
.btn:hover { border-color: var(--ink-2); background: rgba(255,255,255,.04); }
.btn.primary { background: var(--signal); border-color: var(--signal); color: var(--signal-ink); }
.btn.primary:hover { filter: brightness(1.08); background: var(--signal); }
.btn.primary::before { content: ""; border-left: 9px solid currentColor; border-top: 6px solid transparent; border-bottom: 6px solid transparent; }
button.small, .small {
  font: 500 12px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--ink-2);
  background: transparent; border: 1px solid var(--rule-2); border-radius: 999px; padding: 8px 12px; cursor: pointer; text-decoration: none;
}
button.small:hover, .small:hover { color: var(--ink); border-color: var(--ink-2); }

/* ---- an example: code + picture --------------------------------------------- */
.example {
  display: grid; grid-template-columns: minmax(0, 1fr) clamp(220px, 26vw, 320px); gap: var(--s5) var(--s6); align-items: start;
  margin: var(--s5) 0 var(--s7);
}
.example-code { min-width: 0; }
.example-fig { min-width: 0; }
.example .shot { --pic-h: 300px; margin-left: auto; }
.example .caption { color: var(--ink-2); font-size: 14px; margin: var(--s2) 0 0; }
@media (max-width: 760px) {
  .example { grid-template-columns: 1fr; }
  .example .shot { margin-left: 0; --pic-h: 280px; }
}

/* ---- home: the stage ----------------------------------------------------------- */
.stage {
  position: relative; overflow: hidden; isolation: isolate;
  min-height: clamp(600px, calc(100svh - 58px), 980px);
  background: var(--stage-bg, #000); transition: background-color .6s ease;
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  border-bottom: 1px solid var(--rule);
}
.stage-pic { position: relative; grid-column: 2; grid-row: 1; min-height: 100%; }
.stage-pic .shot { position: absolute; inset: 0; width: auto; }
.stage-pic .shot .pic { border-radius: 0; box-shadow: none; }
.stage-pic .pic { height: 100%; aspect-ratio: auto; transition: opacity .45s ease; }
.stage-pic .pic.fading { opacity: 0; }
.stage-copy {
  grid-column: 1; grid-row: 1; position: relative; z-index: 2;
  padding: clamp(40px, 9vh, 120px) 0 var(--s7) var(--gutter);
  display: flex; flex-direction: column; justify-content: center; gap: var(--s5);
}
.stage-copy .label { color: rgba(255,255,255,.62); }
.wordmark {
  font: 800 clamp(84px, 11.5vw, 200px)/.82 var(--sans); letter-spacing: -0.065em; margin: 0 0 0 -0.04em;
  color: #fff; display: flex; align-items: flex-end;
}
.wordmark .caret { width: .09em; height: .62em; margin-left: .06em; vertical-align: 0; align-self: flex-end; margin-bottom: .05em; }
.tagline { font-size: clamp(20px, 2vw, 26px); line-height: 1.4; color: #fff; max-width: 22em; margin: 0; }
:lang(ja) .tagline { line-height: 1.6; }
.cta { display: flex; gap: var(--s3); flex-wrap: wrap; }
.cta .film-link { align-self: center; }
.install-line {
  display: inline-flex; align-items: center; gap: var(--s3); align-self: flex-start;
  background: rgba(0,0,0,.5); border: 1px solid rgba(255,255,255,.14); border-radius: 6px; padding: 6px 6px 6px 14px;
  font: 14px/1 var(--mono); color: #fff;
}
.install-line .ps { color: var(--signal); user-select: none; }
.install-line code { background: none; padding: 0; font-size: 14px; }
.install-note { color: rgba(255,255,255,.7); font-size: 14px; max-width: 38em; margin: 0; }
.stage-subs { position: absolute; z-index: 3; left: var(--s5); right: var(--s6); bottom: var(--s6); pointer-events: none; }
.stage-subs pre.subs { font-size: 14px; }
.stage-pic .pic.typing { opacity: .38; }
.stage-meta {
  position: absolute; z-index: 3; top: var(--s5); right: var(--gutter); margin: 0;
  display: flex; gap: var(--s4); align-items: center; flex-wrap: wrap; justify-content: flex-end;
  font: 12px/1 var(--mono); letter-spacing: .05em; color: rgba(255,255,255,.78); font-variant-numeric: tabular-nums;
}
.stage-meta > span { background: rgba(8,8,12,.55); padding: 5px 8px; border-radius: 3px; }
.stage-meta .live { display: inline-flex; align-items: center; gap: 7px; color: #fff; text-transform: uppercase; letter-spacing: .12em; }
.stage-meta .ro-dot { animation: rec 1.6s ease-in-out infinite; }
.stage .tick { position: absolute; z-index: 1; width: 18px; height: 18px; background: url("mark.svg") center / contain no-repeat; opacity: .55; }
.stage .tick.a { left: -9px; top: var(--s5); }
.stage .tick.b { right: var(--s5); bottom: var(--s5); }
@media (max-width: 900px) {
  .stage { grid-template-columns: 1fr; grid-template-rows: auto auto; min-height: 0; }
  .stage-copy { grid-row: 1; padding: var(--s6) var(--gutter) var(--s6); gap: var(--s4); }
  .stage-pic { grid-column: 1; grid-row: 2; height: min(112vw, 70svh); min-height: 0; }
  .stage-subs { left: var(--s3); right: var(--s3); bottom: var(--s3); }
  .stage-subs pre.subs { font-size: 10.5px; line-height: 1.5; }
  .stage-meta { top: var(--s3); right: var(--s3); left: var(--s3); justify-content: flex-start; gap: var(--s2); }
  .stage-meta .sm-file-wrap { display: none; }
  .stage .tick { display: none; }
  .wordmark { font-size: clamp(76px, 25vw, 150px); }
  .install-note { font-size: 13px; }
}

/* ---- home: sections below the stage ------------------------------------------------- */
.band { padding: var(--s9) var(--gutter) 0; max-width: calc(var(--wide) + 2 * var(--gutter)); margin: 0 auto; }
.film { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: var(--s6); align-items: center; scroll-margin-top: 60px; }
.film h2 { font-size: clamp(32px, 4vw, 48px); }
.film h2 + p { margin: var(--s3) 0 0; color: var(--ink-2); }
.film video { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; background: #000; border: 1px solid var(--rule); }
@media (max-width: 760px) {
  .film { grid-template-columns: 1fr; gap: var(--s4); }
}
.band-head { display: grid; grid-template-columns: 140px minmax(0, 1fr); gap: var(--s5); align-items: baseline; margin-bottom: var(--s7); }
.band-head h2 { font-size: clamp(32px, 4vw, 44px); }
.band-head > .label { margin: 0; padding-top: .9em; }
.band-head > div p { color: var(--ink-2); max-width: 46em; margin: var(--s3) 0 0; }
.wave-rule { height: 10px; margin: var(--s9) var(--gutter) 0; background: url("wave.svg") left center / auto 10px repeat-x; opacity: .9; }
.beliefs { list-style: none; margin: 0; padding: 0; counter-reset: b; }
.beliefs li {
  display: grid; grid-template-columns: 140px minmax(0, 1fr); gap: var(--s5); align-items: baseline;
  padding: var(--s6) 0; border-top: 1px solid var(--rule);
}
.beliefs li:last-child { border-bottom: 1px solid var(--rule); }
.beliefs .n { font: 500 13px/1 var(--mono); color: var(--signal); letter-spacing: .1em; }
.beliefs p { font-size: clamp(26px, 3.4vw, 44px); line-height: 1.22; font-weight: 650; letter-spacing: -0.02em; margin: 0; max-width: 24em; }
:lang(ja) .beliefs p { font-size: clamp(22px, 2.8vw, 36px); line-height: 1.5; letter-spacing: .01em; word-break: auto-phrase; }
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--s7) var(--s6); counter-reset: step; }
.steps li { display: flex; flex-direction: column; gap: var(--s3); min-width: 0; }
.steps .shot { --pic-h: 230px; width: 100%; max-width: 360px; }
.steps .shot .pic { aspect-ratio: 4 / 3; }
.step-head { display: flex; align-items: baseline; gap: var(--s3); }
.step-head .label { flex: none; }
.step-head h3 { font: 600 20px/1.3 var(--mono); color: var(--t-w); }
.steps p { color: var(--ink-2); margin: 0; font-size: 15px; }
.steps pre.code { font-size: 12.5px; padding: var(--s3) var(--s4); white-space: pre-wrap; word-break: break-all; }
@media (max-width: 960px) { .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) {
  .steps { grid-template-columns: 1fr; }
  .band-head, .beliefs li { grid-template-columns: 1fr; gap: var(--s2); }
}
.glimpse { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--s6); }
.glimpse a.card { text-decoration: none; display: flex; flex-direction: column; gap: var(--s3); }
.glimpse .shot { --pic-h: 400px; width: 100%; }
.glimpse .shot .pic { aspect-ratio: 1; }
.glimpse h3 { font-size: 20px; }
.glimpse a.card:hover h3 { text-decoration: underline; text-decoration-color: var(--signal); text-underline-offset: 5px; }
.more { margin-top: var(--s6); }
.wordmap { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 0; border-top: 1px solid var(--rule); border-left: 1px solid var(--rule); }
.wordmap a { display: block; padding: var(--s5); border-right: 1px solid var(--rule); border-bottom: 1px solid var(--rule); text-decoration: none; transition: background .16s; }
.wordmap a:hover { background: var(--stage-2); }
.wordmap h3 { font-size: 22px; margin: var(--s2) 0 var(--s3); }
.wordmap .ws { font: 13px/1.7 var(--mono); color: var(--ink-3); }
@media (max-width: 800px) { .glimpse { grid-template-columns: 1fr; } }

/* ---- guide & reference: long-form documents --------------------------------------- */
.doc {
  display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: clamp(24px, 4vw, 72px);
  max-width: calc(var(--wide) + 2 * var(--gutter)); margin: 0 auto; padding: var(--s8) var(--gutter) 0;
}
.side nav {
  position: sticky; top: 76px; max-height: calc(100vh - 96px); overflow-y: auto; overscroll-behavior: contain;
  padding: 0 var(--s3) var(--s6) 0; font-size: 14px; scrollbar-width: thin; scrollbar-color: var(--rule-2) transparent;
}
.side .label { display: block; margin-bottom: var(--s4); }
.side h3 { margin: var(--s5) 0 var(--s2); }
.side h3 a { font: 500 12px/1.3 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--ink-3); text-decoration: none; }
:lang(ja) .side h3 a { font: 600 13px/1.3 var(--sans); letter-spacing: .06em; }
.side ol, .side ul { list-style: none; margin: 0; padding: 0; }
.side li a {
  display: block; padding: 3px 0 3px 14px; margin-left: -1px; border-left: 1px solid var(--rule);
  color: var(--ink-2); text-decoration: none; line-height: 1.45;
}
.side li a:hover { color: var(--ink); border-left-color: var(--ink-2); }
.side a[aria-current="true"] { color: var(--ink); border-left: 2px solid var(--signal); padding-left: 13px; }
.side h3 a[aria-current="true"] { color: var(--ink); }
.side code { background: none; padding: 0; font-size: 13.5px; box-shadow: none; }
.side .toc a { display: grid; grid-template-columns: 26px minmax(0, 1fr); }
.side .toc .num { font: 12px/1.9 var(--mono); color: var(--ink-3); }
.doc-body { min-width: 0; }
.doc-head { margin-bottom: var(--s8); max-width: var(--measure); }
.doc-head h1 { font-size: clamp(44px, 6vw, 64px); letter-spacing: -0.035em; margin: var(--s3) 0 var(--s4); }
.doc-head .lead { font-size: 20px; color: var(--ink-2); margin: 0; }
.prose > p, .prose > .details > p, .step > p { max-width: var(--measure); }
.chapter { padding-top: var(--s7); scroll-margin-top: 70px; }
.chapter + .chapter { border-top: 1px solid var(--rule); margin-top: var(--s7); }
.chapter h2 { font-size: clamp(28px, 3.2vw, 36px); margin: var(--s3) 0 var(--s6); }
.step { margin-bottom: var(--s6); }
.step-words, .see { font-size: 14px; color: var(--ink-3); display: flex; gap: 6px 12px; flex-wrap: wrap; align-items: baseline; }
.step-words span, .see span { font: 500 12px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.group { padding-top: var(--s7); scroll-margin-top: 70px; }
.group > header { display: flex; align-items: baseline; justify-content: space-between; gap: var(--s4); border-bottom: 1px solid var(--rule-2); padding-bottom: var(--s3); margin-bottom: var(--s4); }
.group > header h2 { font-size: clamp(28px, 3.2vw, 36px); }
.word { padding: var(--s6) 0 var(--s4); border-bottom: 1px solid var(--rule); scroll-margin-top: 70px; }
.word:last-child { border-bottom: 0; }
.word > header { display: flex; align-items: baseline; gap: var(--s4); flex-wrap: wrap; margin-bottom: var(--s3); }
.word h3 { font: 700 28px/1.1 var(--mono); letter-spacing: -0.02em; }
.word h3 code { background: none; padding: 0; font-size: inherit; }
.word h3 a { text-decoration: none; }
.word h3 a:hover::after { content: " #"; color: var(--ink-3); }
.signature { font: 14px/1.5 var(--mono); color: var(--ink-2); margin: 0 0 var(--s3); overflow-x: auto; white-space: pre; }
.summary { font-size: 19px; max-width: var(--measure); }
.details p { color: var(--ink-2); }
.details p code, .summary code { color: var(--ink); }
:target > header h3, :target > h2 { color: var(--ink); }
.word:target > header h3 code { box-shadow: 0 3px 0 var(--signal); }
@media (max-width: 900px) {
  .doc { grid-template-columns: 1fr; padding-top: var(--s6); }
  .side nav { position: static; max-height: 15rem; border: 1px solid var(--rule); border-radius: 6px; padding: var(--s4); }
  .side .word-index { display: flex; flex-wrap: wrap; gap: 0 var(--s3); }
  .side .word-index li a { border: 0; padding: 2px 0; margin: 0; }
  .doc-head { margin-bottom: var(--s6); }
}

/* ---- gallery ------------------------------------------------------------------------ */
.gallery-page { max-width: calc(var(--wide) + 2 * var(--gutter)); margin: 0 auto; padding: var(--s8) var(--gutter) 0; }
.gallery { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s8) var(--s7); }
.piece { min-width: 0; }
.piece .frame { position: relative; }
.piece .shot { --pic-h: 620px; width: 100%; }
.piece .shot .pic { aspect-ratio: 5 / 4; }
.piece .overlay {
  position: absolute; inset: 0 0 auto 0; bottom: 32px; padding: var(--s4); overflow: auto;
  opacity: 0; transition: opacity .16s; pointer-events: none; display: flex; align-items: flex-end;
}
.piece .overlay pre.subs { font-size: 13px; }
.piece:hover .overlay, .piece:focus-within .overlay, .piece.show-code .overlay { opacity: 1; }
.piece.show-code .overlay { pointer-events: auto; }
.piece-head { display: flex; align-items: baseline; justify-content: space-between; gap: var(--s4); margin-top: var(--s4); }
.piece-head h2 { font-size: 26px; }
.piece-head .label { flex: none; }
.piece > p { color: var(--ink-2); margin: var(--s2) 0 var(--s3); max-width: 44em; }
.piece .actions { display: flex; gap: var(--s3); align-items: center; flex-wrap: wrap; }
.piece .actions .to-play { margin: 0; }
@media (max-width: 860px) { .gallery { grid-template-columns: 1fr; gap: var(--s8); } }

/* ---- playground ----------------------------------------------------------------------- */
.page-playground .foot { margin-top: var(--s7); }
.play {
  display: grid; grid-template-columns: minmax(340px, 5fr) minmax(0, 7fr); grid-template-rows: auto minmax(0, 1fr);
  height: calc(100svh - 58px); min-height: 520px; border-bottom: 1px solid var(--rule);
}
.play-bar {
  grid-column: 1 / -1; display: flex; align-items: center; gap: var(--s3); flex-wrap: wrap;
  padding: var(--s2) var(--gutter); border-bottom: 1px solid var(--rule); background: var(--stage-2);
  font: 12px/1 var(--mono); letter-spacing: .04em; color: var(--ink-2);
}
.play-bar .file { color: var(--ink); display: inline-flex; align-items: center; gap: 8px; }
.play-bar .file::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--signal); }
.status { color: var(--ink-3); flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.play-bar .fc { font-variant-numeric: tabular-nums; color: var(--ink-3); }
.play-edit { display: flex; flex-direction: column; min-height: 0; border-right: 1px solid var(--rule); background: var(--stage); }
.editor { position: relative; flex: 1; min-height: 0; background: var(--stage); }
#code, #code-tint {
  position: absolute; inset: 0; margin: 0; width: 100%; height: 100%;
  font: 15px/1.7 var(--mono); letter-spacing: 0; tab-size: 2; white-space: pre; overflow-wrap: normal; word-break: normal;
  padding: var(--s5) var(--s5) var(--s5) var(--gutter); border: 0; border-radius: 0;
}
#code-tint { overflow: hidden; color: var(--ink); background: none; pointer-events: none; }
#code-tint code { font: inherit; }
#code {
  resize: none; overflow: auto; background: transparent; color: transparent; -webkit-text-fill-color: transparent;
  caret-color: var(--signal);
}
#code::selection { background: rgba(142, 197, 255, .3); -webkit-text-fill-color: transparent; }
#code:focus-visible { outline: 2px solid var(--focus); outline-offset: -2px; }
.hint { color: var(--ink-3); font-size: 12px; margin: 0; padding: var(--s3) var(--gutter); border-top: 1px solid var(--rule); }
.play-view { position: relative; min-height: 0; }
.stage-box { position: absolute; inset: 0; background: #fff; }
.play-words { max-width: calc(var(--wide) + 2 * var(--gutter)); margin: 0 auto; padding: var(--s7) var(--gutter) 0; }
.play-words .band-head { margin-bottom: var(--s5); }
.word-groups { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: var(--s4) var(--s6); }
.word-group h3 { margin: 0 0 var(--s2); }
.word-group h3 .label { font-size: 12px; }
.word-group ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 2px 12px; }
.word-group a { text-decoration: none; }
.word-group code { background: none; padding: 0; color: var(--t-w); font-size: 14px; box-shadow: none; }
.word-group a:hover code { text-decoration: underline; }
@media (max-width: 860px) {
  .play { grid-template-columns: 1fr; grid-template-rows: auto auto auto; height: auto; min-height: 0; }
  .play-view { order: -1; grid-row: 2; height: min(100vw, 58svh); }
  .play-bar { grid-row: 1; }
  .play-edit { grid-row: 3; border-right: 0; }
  .editor { flex: none; height: 19rem; }
  #code, #code-tint { font-size: 14px; padding-left: var(--s4); }
}

/* ---- small screens ------------------------------------------------------------------------- */
@media (max-width: 720px) {
  .top { gap: var(--s2) var(--s4); padding: var(--s3) var(--s4); }
  .lang { order: 2; }
  .nav { order: 3; width: 100%; }
  .nav ul { gap: 4px var(--s4); }
}
@media (max-width: 600px) {
  body { font-size: 16px; }
  .play-bar .fc { display: none; }
  .play-bar { gap: var(--s2); }
}

/* ---- motion ---------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}